This is Part 3 of the humor-inspired saga on the journey from monoliths to microservices, to serverless, and now incorporating AI agents. If you haven’t read Part 1: Mono’s Journey from Monolith to Microservices and Part 2: Mikro’s Serverless Saga, please do so first.
The question arises frequently in engineering discussions: “Should we break up our monolith into microservices?” The answer is often surprising: “Probably not” or “It depends”. This isn’t because microservices are bad—they’re not. It’s because the industry has finally moved past the religious wars where you were either team microservices or team monolith, with no middle ground. The reality in 2025 is far more nuanced.
This is part 2 of a humor-inspired take on Monoliths to microservices that I wrote a few years back: https://blogs.justenougharchitecture.com/monos-journey-from-monolith-to-microservices/. If you did not read that, please do so first.
Mikro was serving his consumers as always. He consistently met his promises (SLAs), and his life was good. Suddenly, he felt a stab and excruciating pain. “Damnit, what was that?” he said. To Mikro’s horror, he found himself being sliced and diced into smaller and smaller pieces. “But I thought I was already micro enough!” he wailed as functions were extracted from his very being.